Prevents the strap from loosening when it is no longer under tension and is 4 times stronger than standard straps, making the strap safer and more comfortable to use. A 5m x 25mm ratchet strap is included to hold the strap securely in place. The S-hook includes a retaining clip for added security. The ratchet has a tying capacity of 400kg. The straps are suitable for securing and binding boxes, mattresses, furniture, sports equipment, motorcycles and other items during transport. Ideal for mobile and private or professional use.